‘Killing Lincoln’ is tough on viewers, too

On April 4, 1865, Abraham Lincoln lands in Richmond, Virginia, to see the devastated ruins of the former rebel capital city. (National Geographic Channels)

President Abraham Lincoln, portrayed by Billy Campbell, speaks to a Union soldier, Private John W. Nichols of Company K, about a frightening incident he has just survivedwhat may have been an assassination attempt. While riding horseback alone one evening, Lincoln was nearly shot by an unknown shooter. It is said that the bullet left a hole in his top hat. (National Geographic Channels)